Restoration of Noisy Ultrasound Image with Rectilinear Effect using Curvelet

Ultrasound Imaging is primary modality in the diagnosis of many diseases. Compared to other imaging techniques ultrasound imaging owes its great popularity to the fact that it is safe and noninvasive procedure for visualizing the heart, vasculature, abdomen, fetal monitoring etc. Ultrasound images are degraded by intrinsic artifacts called speckle which is result of constructive and destructive coherent summation of ultrasound echoes. In ultrasound imaging if a relative motion exist (subject moves from its position) during imaging the recorded image will be blurred. This effect can be expressed by an impulse response in received echo pulses and respective image restoration is made possible by a post recording process. In this paper we proposed the method to remove the blurring and additive speckle noise is removed by curvelet transform domain which uses cycle spinning.